Combination sitting and standing chair



FIG. 1 is a perspective view of a combination sitting and standing chair showing my new design with the floor plate extended;

FIG. 2 is a perspective view thereof with the floor plate folded;

FIG. 3 is a left side elevational view thereof with the floor plate extended, the right side being a substantial image;

FIG. 4 is a left side elevational view thereof with the floor plate folded, the right side being a substantial image;

FIG. 5 is a front elevational view thereof with the floor plate extended;

FIG. 6 is a rear elevational view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a left side elevational view thereof with the chair back reversed. 

The ornamental design for a combination sitting and standing chair, as shown and described. 